7. Essentials of SHACL quiz

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Question 1 of 3

1. Question
1. SHACL distinguishes shape graphs and data graphs. Which of the following statements is the most correct one?
- a. A shape graph is any graph with shapes in it
- b. A data graph may not contain shapes
- c. Answer a is correct, and in addition, a SHACL engine applies the shapes to the data graph
- d. A SHACL engine accepts a data graph and a shapes graph, and these must be distinct (i.e., must have different graphURIs)
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Question 2 of 3

2. Question
Which of the following statements is the most accurate?
- a. RDFS and OWL are used to express vocabularies, SHACL is used to express rules
- b. RDFS and OWL are used to express semantic constraints, SHACL is used to express syntactic constraints
- c. RDFS and OWL are used to express axioms, SHACL is used to express contingent rules
- d. RDFS and OWL are used for inferencing, SHACL is used for validation
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3. Question
Suppose we have an ontology that specifies that the rdfs:range of a predicate is ex:Document. We apply the ontology to a data graph which contains a triple <s> <p> <o> with that predicate. The RDF Dataset does not contain a statement that assigns <o> to the type ex:Document. Which of the following statements is most accurate?
- a. An inference engine will by default infer that <o> is a ex:Document, except when <o> is explicitly typed as an instance of some other class
- b. A contradiction will be detected
- c. An error will result
- d. An inference engine will infer that <o> is a ex:Document, even if it is explicitly typed as an instance of some other class
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7. Essentials of SHACL quiz

7. Essentials of SHACL quiz

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